4
WARNINGS
•
Do not use telescope or finderscope to look at the sun without an
appropriate solar filter. Doing so will cause permanent and irreversible
eye damage.
•
Never use an eyepiece filter as a solar filter. Only solar filters will
completely cover the opening of the optical tube and provide proper
eye protection.
•
Make sure no screws are loose before using telescope.
•
Do not drop or shake your telescope as doing so may damage the
optics, or harm you or the people around you.
CLEANING AND MAINTENANCE
A telescope is carefully aligned during construction, and great care
should be taken to maintain this alignment over the life of the telescope.
Cleaning should be done as little as possible and then only with
mild soap solution and a soft, lint-free cloth. Do not rub elements
when cleaning. Blot optical components gently and allow telescope
to air-dry. Store telescope in its box or in a telescope case when
not in use. Do not use pure alcohol or solvents to clean any parts of
the telescope. Do not remove optical elements from the telescope
as doing so may affect the alignment of optical components when
reassembled. If telescope needs realignment, contact Zhumell or
another professional.
1.
Brush telescope optics with camelhair brush or blow off dust with
an ear syringe (can be purchased at any pharmacy). Do not use
a commercial photographic lens cleaner.
2.
Remove organic materials (e.g. fingerprints) with short gentle strokes
using soft white tissue paper and a solution of three parts distilled
water and one part isopropyl alcohol. You may also add one drop
of biodegradable dish soap to one pint of the homemade solution.
Do not use lotioned or scented tissues as they could damage the
optics of your telescope.
3.
Wipe down the outside of your telescope with a dry cloth to remove
condensation prior to packing up your telescope. Do not wipe any
of the optical surfaces. Instead, allow the optics to dry naturally
in warm indoor air prior to packing up your telescope.
4.
Protect your telescope from excessive heat. For example do not
store your telescope in a sealed car on a warm day. Excessive
storage temperatures can damage your telescope.
OPTICAL TUBE ASSEMBLY
Type
Refractor
Aperture (mm)
50
Focal Length (mm)
360mm
Limiting Magnitude
11
Focal Ratio
f/7.2
Eyepiece Format
1.25”
Finderscope
Red-Dot Finderscope
Mount Type
Alt-azimuth (Photo Tripod Style)
Unbox and gather the pieces of your telescope.
Extend all three tripod legs to a comfortable working height and
tighten all three clamps securely. Separate the legs until the
cross-section in the middle lays flat. Make sure the top of the
tripod is leveled before moving on.
Loosen the top right knob by turning it counterclockwise. Tilt
the tripod platform up 90°.
Screw the ¼-20 knob on the mount into the hole on the bottom
of the telescope tube.
Lower the tripod platform back to its normal position and
tighten the knob to lock it in place.
Insert the silver tube of the star diagonal into the focuser of the
telescope and secure it in place using the silver set screws on
the focuser.
Choose the lowest-power eyepiece (20mm included) and place
it in the diagonal prism, silver side first. Secure it in place with
the thumbscrew on the diagonal prism.
You are now ready to begin using your telescope!
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SPECIFICATIONS FOR YOUR
ZHUMELL TELESCOPE
TELESCOPE ASSEMBLY
